[MPICH] Maximum message length
James S Perrin
james.s.perrin at manchester.ac.uk
Thu Jan 5 06:14:54 CST 2006
Hi,
As the in Sends/Recvs message count is defined as an int (32bit) is the maximum
message count 2^31 or (2^31)/sizeof(datatype) ie the number of bytes is limited
to 2^31 ? Is this behaviour implementation specific?
I need to move data > 2^31 on 64bit systems (though this is a computationally
rare occuarance).
Regards
James
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James S. Perrin, | email: james.perrin at manchester.ac.uk
Manchester Visualization Centre, | www.sve.man.ac.uk/General/Staff/perrin
Kilburn Building, The University, | tel: +44 161 275 6945
Manchester, England. M13 9PL. | fax: +44 161 275 6800/6040
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